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what v define from IR & NMR spectroscopy ?
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Answer / surya prakash
excitation of the electrons from outermost orbit to its
excited state by the absorption of energy '''''''and while
returning to its original; state .... the emmision
wavelenghts are recoreded for obtaining the graph'''''''
'
;'
'
excitation of rlectrons simply'''
in ir its alone and in nmr its in the presence of magnetic
field
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Organic Chemistry 
